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Cupressus cashmeriana is a medium-sized to large coniferoustree growing 20–45 metres (66–148 ft) tall, rarely much more, with a trunk up to 3 metres (9.8 ft) diameter. The foliage grows in strongly pendulous sprays of blue-green, very slender, flattened shoots. The leaves are scale-like, 1–2 mm long, up to 5 mm long on strong lead shoots; young trees up to about 5 years old have juvenile foliage with soft needle-like leaves 3–8 mm long.[2]

The seed cones are ovoid, 10–21 mm long and 10–19 mm broad, with 8–12 scales, dark green, maturing dark brown about 24 months after pollination. The cones open at maturity to shed the seed. The pollen cones are 3–5 mm long, and release pollen in early spring.

A tree of 95 metres (312 ft) tall has recently been reported,[3] but the measurements await verification.

Cupressus cashmeriana is widely grown horticulturally as an ornamental tree, both within its native region and internationally in temperate climates. It is planted in private gardens and public parks. Many of the plants available outside of its native range are named cultivars, selected for particular forms, textures, or foliage colours, such as very pendulous branching or shoots, a fastigate or columnar shape, or a particularly bright blue or silvery glaucous foliage.